ComeBack Mobility – Patient

Built the patient iOS app and BLE connectivity SDK for ComeBack Mobility's FDA-cleared Smart Crutch Tips, with custom and standard GATT and real-time weight-bearing feedback, on a platform with 3.5x better clinical compliance than the control group.

73.6% compliance

3.5× vs control

iOS Swift UIKit CoreBluetooth (custom GATT + standard BLE profile)

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The challenge

After lower-limb surgery, patients often exceed or under-use their prescribed weight-bearing limits, which risks implant failure and slows recovery. The patient app had to hold a reliable BLE connection to the Smart Crutch Tips and show real-time gait compliance without clinical complexity.

What we built

Built the patient iOS app and connectivity SDK between January and September 2021:

CoreBluetooth with custom and standard GATT
Device pairing with cane and crutches modes
Real-time weight-bearing charts with rehab-day progress
Packaged as the CBMobility CocoaPod

Results & proof

Weight-bearing compliance of 73.6% versus 21.1% in the control group (Brueilly et al., 2024)
System Usability Scale score of 84.25, rated excellent
10 out of 10 patient recommendation likelihood
FDA-cleared device with 3 active clinical trials

Tech & scope

HealthTech / BLE

Swift UIKit CoreBluetooth (custom GATT + standard BLE profile)

Native Apple engineering led by our principal engineer — the same senior team now ships through Livita Software for funded startups. · Experience of our principal engineer — not contracted through Livita LTD at the time.

ComeBack Mobility – Patient

The challenge

What we built

Results & proof

Tech & scope

Screens

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